题库网 (tiku.one)

 找回密码
 立即注册

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Impulse and momentum



 作者: admin发布日期: 2024-08-07 16:03   总分: 17分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月07日 15:54  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.16: A car of mass m, traveling at 9,dips/f 8glgj w ;xu;*3e ubuspeed v, stops in time t when maximum braking force is applied. Assuming the braking force is independent of mass, what time would be required to st /3wgb ig*edx ;upju,;flu89sop a car of mass 2m traveling at speed v?

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.04: When the velocity of a movi n- mw3(6,)z6jq 6ewybnj 6mutn5qw1zqvrl2ing object is doubled, its_______is also doublednqzw21zw6mly)bnu r t nm(6q6 3ejijv ,-5wq 6.

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.06: Impulse, Fnevv,a ndy5s vbk:aa2.idu:60 vt $\Delta$tis best related to:

参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.05: Which one of the following choices is most closel fj38cdv: )l9ac5vmu i(mzgu 1y associated with the following observation about an isolated object: “The linear momentum of the object f8a3i(dv 9m1uc v)mlu5 j:gzcis constant.”?

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.21: The change in linear momentum of an object is always in tr1 v(am1 te0ijpq6vufq:pe:9he same direction as t1ut91epv a:j0 :p e6fr(iqvmqhe

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.08: How long must awlwv;zl*+ t h5 100 N net force act to produce a change in momentum of 200h +*lwt5vwl;z kg.m/s?

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.29: P and Q have the same qh7wj;6r5xzm- s kr*z momentum. Q can have more kinetic energy than P if it: j ;zwhkx*6srmr5 z-q7

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.26: A ball with a mass of 0.50 kg and a speed of 6.0 m/s pfgc,c 4qv99 uhbh+k,( r5di dbon( e7collides perpendicularly with a wall and bounces off with a speed of 4.0 m/s in the9o7g,h(d b4v+,ipqh cdrkn bf uc 95e( opposite direction. What is the magnitude of the impulse acting on the ball?

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.08: A 50 kilogram gymnast falls freely from a height of 4 ) atdkpj)i ts58jc7(ymeters on to a trampoline. The trampoline then bounces her back upward with a speed equal to the speed at which she first struck the trampoline. What is the average force the trampoline applies on thepti a)7d)ckt s8 y(5jj gymnast?

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.27: A 2.0 kg massv :15 blusctxne 01nyp1ozp:; moves at 10.0 m/s when it has a collision in space. The mass’s speed was unchanged, but the direction of its velocity was altered bzetc:5ls : y vu110 no;1nbpxpy $80^{\circ}$. If the collision lasted 0.25 s, what was the magnitude of the average force exerted on the mass?



参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.13: A bat striking a 0.125 kg-ba6jfj-pk5(9lb 4dg:c ;hadkrmseball is in contact with the ball for a time of 0.03 seconds. The ball travels in a straight line as it approaches and then leaves the bat. If the ball arrives at the bat with a velocity of 4.5 m/s and leaves withrb6d5a hp9jjml(kd :k4f;g c- a velocity of-6.5 m/s, what is the magnitude of the average force acting on the ball?

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.43: An object of mass 4.0 g has atotal kinetic en1 b x2fcc ;x7z4re2gd) -ndhu)tkzjb6ergy of 100.0 J and an x-component of linear momentum equal to 24.0 kg.m/s. The object is moving in the x-y plane. What is they-component of the object’s linex ) zctc4b)-nzfuhb;rj6dx k2127ge dar momentum?

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.05: At an instant of time t, a point object of mass Mopc; s f39fm3t)cke-h moves with velocity V, has acceleration a, and is at position (x,y). In what direction must the linear momentum of the object be direo)3s3p 9tc;fmh cke- fcted at this instant?

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.32: A rubber ball of mass 2.0 k x9wq 7ga/e/ifg falling straight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. The collision time of the ball with theaw/7f/gie q x9 ground is 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average acceleration (in units of $m/s^{2}$ ) of the ball while it is in contact with the ground?

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.33: A rubber ball of mass 2.0 kg falling st 0yn e4 d4aq6oe08 9qhg1qirzlraight downward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed a10qgq e698dr44yi 0hz lnoeqof 0.60 m/s. The collision time of the ball with the ground is 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average force (in units of Newtons) exerted by the ground on the ball while they are in contact?

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.12: A box of mass 5.0 kg is being pushed to the right across a horizontal 1 yj6b/jd deh08mu w*wsurface while a constant frictional force of 8.0 N acts on the box. At s/mdejd buw8y6wjh *10ome instant of time, the box has a speed of 4.0 m/s and an acceleration of$3.0\; m/s^{2}$ . What is the magnitude of the net force acting on the box at this instant?

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.12: A box of mass 12.0 kg is being pus)i 4qds+*yobz hed to the right across a horizontal surface. When the y+s*4 izdbq)o box has 12.0 J of kinetic energy, a 12.0 N net force acts on it. Which one of the following choices best represents the magnitude of the linear momentum of the box at this instant?

参考答案:    

  • :
  • 总分:17分 及格:10.2分 时间:不限时
    未答题: 已答题:0 答错题:
    当前第 题,此次习题练习共有 17 道题
    本系统支持习题练习,作业与考试三大模式,作业考试自动评分,成绩排序一键导出,可设定动态变量同一试卷千人千题
    如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

    浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

    GMT+8, 2024-12-25 16:10 , Processed in 0.173018 second(s), 55 queries , Redis On.